v-6 in early A-body
sorry if I sounded like an a.sshole, ...
Just ran across your post 66, and it is hard to disagree with post 67. Unprofessional, and probably not a way to attract customers.
The OP started a post asking for ponderings about V-6 possibilities in an A-body and you have launched on any suggestions people made other than the 3.9L Magnum engines that your company installs. It is well-known that a 90 deg bank is not ideal in a V-6, but you dispute that. Seems Mopar only did that to use existing V-8 tooling for a quickie V-6. Doesn't mean it doesn't work OK. But, have they done it since?
There is no requirement to use the factory engine controls, though that is easiest. As a "professional" (albeit a bit foul-mouthed), you should be aware of the megasquirt site. Many people there use a Ford EDIS w/ custom 36-1 crank trigger wheel for spark. I installed such on my 1965 273 engine. There are many options for fuel control. Ex. one could connect a megasquirt or Holley Commander 950 to the engine's injector wiring. One might even use a carburetor.
You say you don't care, but I'll state that I have an M.S. in Mechanical Engineering and work in aerospace instrumentation and controls. I haven't worked professionally in automotive, and only once on an I.C. engine control project, but did design turbine engine fuel controls long ago. Feel free to state any post-secondary education you have, or any experience beyond your current 3.9L installation jobs. It is silly to dismiss certain engines as "truck" or "minivan", but one sees that a lot. The 3.8L "minivan" engine was used in Jeeps. I have a Plymouth minivan w/ 2.4L DOHC 4 cyl that was also used in Neons, which some people race. Is that a "minivan engine"? Check youtube for the "turbo-van" (factory engine) shaming a Z28 in the 1/4 mile.
I never stated that the ring gear was integral w/ the flex-plate in a Magnum, only in the 3.8L. Doesn't matter anyway but for some reason you want to nit-pick. The point I was trying to make in showing the 3.8L "toner ring" was for Kit. It suggests that the 3.8L might use a more complicated spark timing algorithm than simply "spark at the window" as Magnum engines apparently do (plus advance). The uneven windows might allow it to start sparking sooner while cranking. But, they could be to help determine which cylinder is mis-firing. One might need to peruse patent filings to determine the reasons.
